#include <iomanip>
#include <iostream>
using namespace std;

int main() {
  double** matrix;
  int m, n;
  cout << "Enter m: ";
  cin >> m;
  if (m <= 0) {
    cout << "M must be positive";
    return 0;
  }
  cout << "Enter n: ";
  cin >> n;
  if (n <= 0) {
    cout << "N must be positive";
    return 0;
  }

  matrix = new double*[m];
  for (int i = 0; i < m; i++) {
    matrix[i] = new double[n];
  }

  int maxI = 0, maxJ = 0;
  cout << "Fill matrix:" << endl;
  for (int i = 0; i < m; i++) {
    for (int j = 0; j < n; j++) {
      cout << "[" << i << "][" << j << "]) ";
      cin >> matrix[i][j];
      if (matrix[maxI][maxJ] < matrix[i][j]) {
        maxI = i;
        maxJ = j;
      }
    }
  }

  cout << endl << "Your array:" << endl;
  for (int i = 0; i < m; i++) {
    for (int j = 0; j < n; j++) {
      cout << setw(4) << matrix[i][j] << " ";
    }
    cout << endl;
  }
  // swaping row
  double* temp = matrix[0];
  matrix[0] = matrix[maxI];
  matrix[maxI] = temp;

  // u can remove
  cout << endl << "Your array after swapping row:" << endl;
  for (int i = 0; i < m; i++) {
    for (int j = 0; j < n; j++) {
      cout << setw(4) << matrix[i][j] << " ";
    }
    cout << endl;
  }
  // swaping column
  for (int i = 0; i < m; i++) {
    double temp = matrix[i][0];
    matrix[i][0] = matrix[i][maxJ];
    matrix[i][maxJ] = temp;
  }

  cout << endl << "Your array after swapping column:" << endl;
  for (int i = 0; i < m; i++) {
    for (int j = 0; j < n; j++) {
      cout << setw(4) << matrix[i][j] << " ";
    }
    cout << endl;
  }
  return 0;
}